These stainless steels are designated by their alloy percentages followed by the letters PH, as in 17-4 PH which contains 17% nickel and 4% chromium. These alloys offer high strength, high temperature and corrosion resistance.

  • 17-7 pH Stainless Steel

    Similar in corrosion resistance to type 302, this alloy is a standard for wave springs. Spring properties are achieved by precipitation hardening. As a result, the material may be subjected to a temperature of 650 F without a loss of spring properties. 17-7 PH C/CH-900 exhibits magnetism similar to high carbon steel. After precipitation hardening, 17-7 has a blue to brown color, although atmosphere controlled heat treatments provide a bright color.



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